title: Topological properties of bulk and edge states in honeycomb lattice photonic crystals: the case of TE polarization.
abstract: Topological properties of bulk and edge states in honeycomb lattice photonic crystals are investigated theoretically for transverse-electric (TE) polarization. Breaking of space-inversion and time-reversal symmetries is considered at optical frequencies. The bulk band structure exhibits a topological phase transition by changing the degree of the broken symmetries. The resulting phase diagram correlates with zigzag and armchair edge states, and the so-called bulk-edge correspondence is verified. The effects of flat interfaces near the edges are also discussed.
authors.affiliation: Quantum Dot Research Centre, National Institute for Materials Science (NIMS), Tsukuba 305-0044, Japan. OCHIAI.Tetsuyuki@nims.go.jp
authors.forename: Tetsuyuki
authors.initials: T
authors.lastname: Ochiai